Here’s another one of those quirky, brilliant hidden features of the iPhone’s operating system. I’m sure you’ve all muted a phone call while on the line with someone, right? What about when you’re on speaker phone? Mute makes sure that the other person can’t hear you, but you certainly can still hear them. That can be frustrating, especially when in a room with other folks, like during an interview.
Sometimes it’s just good to mute both sides of the conversation, right? Hold is the way your iPhone can do that.